Sierra Gorda (SG) is in the Paleocene-Eocene porphyry Cu belt of northern Chile-southern Peru and was long known for extensive Cu-tourmaline breccias but was not recognized as a porphyry deposit. Before 2000, several companies drilled 488 holes, establishing.Feb 20, 2016 Szenicsite is another copper hydroxymolybdate - it was tempting to put this Sierra Gorda (Cerro Gordo), Antofagasta, Chile thumbnail with the molybdates since there are so few of them. Thanks to C. Carter Rich's table at the 2003 Carnegie Gem Mineral Show for the specimen!.The Escondida copper-gold-silver mine is located in the arid, northern Atacama Desert of Chile about 160km southeast of the port of Antofagasta, at an elevation of 3,050m above sea level The mine is a joint venture between BHP-Billiton (57.5 ), Rio Tinto (30 ), a Japanese consortium (10 ) and the International Finance Corporation (2.5 ).
The vast majority of copper ore resources are clustered in the Andes porphyry-type Cu-Mo-Au mineralized belt in central and northern Chile, which was produced in a subducion-type magmatic-arc tectonic environment. China is the largest importer of copper ores in the world and one of Chile＇s most important copper ore trade partners.FNX Mining Ltd. (now renamed KGHM International Ltd.) which comprises the Sierra Gorda mine, KGHM Polska Miedź S.A. has joined the world leaders in copper production. The task number one to be tackled in 2014 by the company managed by Herbert Wirth was to launch on schedule its flagship project, the Sierra Gorda mine in Chile.
Logging at Sierra Gorda Copper Mine in Chile Sierra Gorda SCM is the largest mining operation started up in recent years in the Antofagasta Region of Chile. Now mining copper and moly concentrate, with over 115,000 tons of ore being processed daily, producing 108,000 tons of copper per year.The process water used for the flotation of sedimentary copper ore in ore concentration plants in KGHM Polska Miedz S.A. were characterized. interpretation of flotation data for the design of process plants , concentrate diluent. Hellyer ore contains finely disseminated chalcopyrite, sphalerite,.
Copper oxides represent an attractive exploration target because even low-grade prospects have the potential to produce low-cost copper in an environmentally friendly fashion. Derived from hypogene and or supergene sulfides, copper oxides comprise a.The Sierra Gorda openpit mine and copper-molybdenum processing plant will become one of the largest mines in the world. The need for optimum production efficiency and sustainability has driven the creation of the most modern, well-instrumented mine in Chile. This article contains a general review of the project including geology and history.
Dec 07, 2006 a Image of the southern segment, Central Andes of northern Chile showing the location of ore deposits. Shaded relief image was obtained from Shuttle Radar Topographic Mapping Mission 90 m digital elevation model (DEM) of northern Chile. Copper deposits of the Late Jurassic (blue triangles stratabound volcanic-hosted deposits), Early Cretaceous (green circles porphyry copper and breccia.The Sierra Gorda Copper Mine is in Antofagasta, Chile. The Sierra Gorda Copper Mine is a underground mining operation. The ore mined is composed of atacamite and malachite with waste material consisting primarily of gypsum, hematite and quartz. Information from 1991 described the ore body as having an unknown shape of unknown dimensions.
Another large copper plant using seawater in Chile is the Esperanza Concentrator at Sierra Gorda (Antofagasta Minerals S.A AMSA). This plant is processing ore.Jan 01, 2009 Esperanza copper-gold deposit located near Sierra Gorda, Chile, hosts 535 Mtn ore grading 0.57 copper, 0.27 g t gold. A series of laboratory and pilot flotation tests were conducted to find out the flotation performance of different ore types both with and without the Flash Flotation.
Oct 21, 2014 Chile is expected to produce a record 5.83 million tonnes of copper this year, rising to 6.23 million next year, state copper commission Cochilco forecast on Friday.Copper miner Quadra Mining (TSX QUA) announced it has wrapped up a scoping study for its wholly owned Sierra Gorda project in Chile. The study, which includes an economic assessment and an updated NI 43-101 compliant mineral resource estimate, will be filed today on SEDAR.
Mar 18, 2016 KGHM looking at claims of environmental permit breaches at Sierra Gorda Sierra Gorda, the Chile-based copper-molybdenum joint venture between KGHM, Sumitomo Metal Mining and Sumitomo Corp, has been told there may be nine areas in which it is.Nov 20, 2019 The Toyo Smelter and Refinery, located in the cities of Saijo and Nihama, Japan, are operated by Sumitomo Metals Mining Co. Ltd. Fed by concentrate from South America, Australia, and southeast Asia, including that from the Sierra Gorda mine, the refinery also extracts gold and molybdenum as by-products from the copper.
Descriptions of major ore deposits world wide. The Sierra Gorda porphyry copper-molybdenum deposit (in the Salvador and Catalina pits) is located in Region II in the Atacama Desert of northern Chile, ~140 km NE of Antofagasta, ~60 km SW of Calama, and 10 km SW of the Spence deposit ( Location 22 51' 17 S, 69 20' 20 W). Sierra Gorda is situated close to the eastern margin of the plain.BHP Billiton’s Spence copper cathode project is located 1,700m above sea level in the Atacama Desert in northern Chile, close to the mining town of Sierra Gorda, 50km south west of Calama and 150km north east of Antofagasta. Feasibility studies were completed in 2002 with mine approval granted in 2004.
Oct 09, 2020 Japanese conglomerate Sumitomo is mulling the sale of its 45 stake in the Sierra Gorda copper-molybdenum mine in northern Chile, the company announced on Thursday October 8. Sumitomo Metal Mining and Sumitomo Corp hold stakes of 31.5 and 13.5 respectively in Sierra Gorda currently, while Polish state-owned miner KGHM holds the remaining 55 .The reserves at Toromocho copper mine are estimated at 1.52 billion tons of ore, grading 0.48 Cu, 0.019 Mo, and 6.88 g t Ag. Mining and ore processing at the existing Toromocho copper mine. The Toromocho copper project currently employs conventional open-pit mining method, involving drilling and blasting. Major mining equipment used at the.